Abstract
Fresh fruits and vegetables are susceptible to several diseases caused by many phytopathogenic microbes which affect their shelf life and quality especially after harvesting. To control these postharvest diseases, the use of synthetic agrochemicals are found to be effective but their phytotoxicity has created a great concern on consumer’s health, environment and food security. The continuous application of synthetic agrochemicals have found to be developing resistance to several pathogen populations. Currently, many importing countries enforce strict regulations on the minimal pesticide residual levels in the edible part of fresh produce. All these reasons mentioned above have necessitated to search for the natural and novel formulations as alternatives to replace the conventional chemical application during postharvest treatments. A novel approach to manage the postharvest losses, while retaining the fruit quality, has been implemented by the use of essential oils like cinnamon oil, thyme oil extracted from spices and herbs. This strategy eliminates the need for the use of synthetic formulations, thereby ensuring the global food security. Therefore, this review aims to emphasize the potential use of spice and herb oils as green alternative and as well as protective agents, their mode of action, method of application and their potential challenges by implementing in postharvest management of fruits and vegetables.
Article highlights
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Spice and herb oil emerging as potent food protectants in postharvest management of fruits and vegetables.
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Essential oils are more safer, effective, novel, non-toxicity compared to agrochemicals.
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Promising bio-tool to combat postharvest losses and extending the shelf life of the produce.
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1 Introduction
The growing demand on fresh fruits and vegetables has led the modern agricultural and food industries to opt for more greener solutions instead of usages of synthetic chemicals like pesticides, fungicides, insecticides and food additives on both raw materials and end food products. 85% of Indian population purchase fruits and vegetables from local markets and unorganized sectors, while only 3% was contributed by organized markets [1]. A vast majority of fruits and vegetables are highly perishable and susceptible to postharvest pathogen attack, causing diseases that result in more than 50% of produce being lost from the harvest to final consumer [2] and its postharvest loss can occur at any step of value chain via., harvesting, field handling, packaging, shipping, and storage [3, 4]. It is more prevalent especially in tropical regions due to a lack of cold storage conditions. Vendors use a wide range of agricultural synthetic chemicals to preserve fruits and vegetables till the point of sale in order to resist microbial postharvest illnesses and metabolic activities such as ripening, browning or senescence [5, 6]. The chemicals use might endanger not only human health but also cause environmental concerns [7].
Hence, novel postharvest techniques like ozone treatment [8], UV treatment [9], e-beam irradiation [10], heat treatments [11], cold plasma [12] and stress induction to stimulate defence mechanism of fresh produce [13] are partially replaced or combined with modified and passive atmospheric packaging in order to maintain the freshness of the horticultural crops. Among all these mentioned treatments, use of essential oil (EO) as protective coating in fruits and vegetables was proved to be a promising method in inhibiting the growth of bacteria, fungi and mould [14]; also considerable reduction in change of physical and sensorial attributes. This paper summarizes the potential of spice and herb oil as discussed below (a) Spice and herb essential oils as green alternative to postharvest agrochemicals (b) Mechanism of action of spice and herb essential oil as bio-protectants (c) Novel delivery technique of spice and herb essential oil on fruits and vegetables (d) Potential challenges and advantages in application of spice and herb essential oils as greener alternative and concluding that essential oil from spice and herbs as a promising bio-tool to prevent postharvest losses, thereby contributing to global food security.
2 Spice and herb essential oils as green alternatives to postharvest agrochemicals
Spices and herbs play an indispensable role in medicinal treatments and world cuisines. The crucial chemical compounds naturally present in these spice and herbs as secondary metabolites called bioactives, gives spice and herbs their peculiar characteristics. Extraction of oil concentrates from these crops were termed as Essential Oil (EOs). These are complex lipids made up of an array of volatile and natural bioactive components that are organic and biodegradable. EOs work synergistically to serve as antibacterial, herbicide, insecticide, repellent, antioxidant, fungicide properties, water vapour barrier, flavour, colour barrier, when delivered through various methods of applications either by direct or indirect contact on the surface of food products [15, 16]. The Lippia oil (Lippia scaberrima) when applied on citrus fruit, Valencia reduced the incidence of fruit decay by 63% comparing to the agrochemicals, thiabendazole or mixture of guazatine/Imazalil resulted in only 5% and 10% respectively [17]. These EOs are generally regarded as more effective, safer, biorational, eco-friendly with minimal residual effect when compared to the conventional agrochemicals [18]. Certain EOs like basil, juniper, lemongrass, clove, thyme, rose geranium, marjoram, rosemary, celery, sage, oregano, cinnamon, cassia, spearmint, nutmeg, mustard and chamomile are Generally Regarded as Safe (GRAS) which are widely used in agriculture, food, cosmetics and textile industries as recommend by FAO [19].
When compared to conventional methods (steam distillation, hydro-thermal distillation etc.,), non-conventional methods (that utilize high pressure, microwave, pulsed electric filed, ultrasonication, etc.,) provides superior quality, higher yield of oil and protection of heat liable bioactive compounds [20, 21]. By this mean, use of EOs extracted through green technologies may be considered as eco-friendly and sustainable green alternative for agro-chemical and postharvest preservation of fruits and vegetables. Illegal use of banned pesticides and other forms of them (either mislabelled or derived products) should be given high risk priority in agriculture and food industries that affects consumer health. Annual assessment of agro-chemical usage in each country should be reported by National agencies jointly with FAO–WHO to ensure limited use of pesticides that pertains to Sustainable Developments Goals (SDS). EOs also serve as an economic alternative when extracted by using agro- industrial bio-waste like leaves, peels, bark, stems, root and pulp wastes as fuel which can be effectively utilized through green technologies to maintain the integrity of circular and bio-economy.
3 Mechanism of action of spice and herb essential oils
3.1 Antibacterial effect
EOs are basically complex product of polyphenols, terpenes, terpenoids, polypropanes and flavonoids etc., and these components were proved to be effective antibacterial agent, when coated on fruits and vegetables. The mechanism of action involves in sequential reactions between the chemical compound of EOs and bacterial cell membrane. EOs containing citronellol, citral, eucalyptol, eugenol, perillaldehyde, geraniol, carvacrol, linalool, α-terpineol, citronellal, nerolidol, limonene and β-ionone have been reported to have antibacterial effect. The action initiates with penetration of lipophilic terpenes and terpenoids into cell membrane through phospholipid bilayer and disruption of membrane, denaturation of cytoplasmic proteins, change in cytoplasmic osmotic pressure, leakage of cell content, inhibition of ATP energy synthesis, dephosphorylation of membrane simultaneously [22]. Cumin oil inhibited the growth of Curtobacterium, Xanthomonas, Erwinia, and Agrobacterium [23], savory oil against Alcaligenes piechaudii, Bacillus pumilus in Apple, Xanthomonas species in tomato, cabbage and pepper [24], cinnamon oil against bacterial canker disease in kiwifruit [25], EOs from garlic, allspice and basil containing eugenol also displayed antibacterial activity, but the mechanism of action was not clearly defined in defence against Pseudomonas syringae sp. in kiwifruit [25, 26] as mentioned in Fig. 1. Recent application of EOs targets pesticide and antibiotic resistant bacteria that results in super bug evolution. The various EOs used, their application on different fruits and vegetables, their mode of actions were discussed in Tables 1 and 2.
3.2 Antiviral effect
Foodborne enteric viruses on surface of fruits and vegetables were scarcely ever reported. The possible route of virus contamination is either through the wet soil that was already contaminated by organic matter like faeces from infected human/animal, polluted water or through postharvest processing steps, where the infected produce come into direct contact. Controlling of virus before harvest is tedious as it involves in many factors [64, 65]. However, by using EOs, few plant viral diseases are reported to be controlled. Oregano oil against tomato leaf curl virus reduced its 10–4 disease severity [44], savory oil against tobacco mosaic virus [66], clove against potato leaf roll virus [67] as mentioned in Fig. 1. Due to their irregular and rugged surface, viral adhesion was prevalent. The mechanism is denaturation of glycoprotein in viral cell membrane that acts as the receptors for attachment of virus to the food surface by monoterpenes (α, γ- terpinene, α-pinene, citrol, 1,8-cineole, thymol) from eucalyptus, rosemary and thyme and inhibition of DNA polymerase enzyme that replicates its viral particles [68]. Bioactive components from eucalyptus, rosemary and tea-tree oil exhibited higher antiviral activity [69]. EOs and vapours of Linalyl acetate, Linalool, Citronellol, Geraniol, 1,8 –Cineole, α-Thujone, Neral, Terpenyl acetate and Borneol has anti-influenza viral activity [70]. Hence, treating suspected fruits & vegetables or raw material intended to produce high grade quality food products shall be treated with gassing of these EOs vapour as effective virus sanitizing agents. Commercialization of these EOs using spray cans or treating raw materials with EOs using a gas chambers would be possible alternative to prevent contamination of pathogenic viruses during receiving from quarantined locality in households, food industries and local markets.
3.3 Antifungal effect
Fruits and vegetables rich in water content and acidic pH makes them highly vulnerable to fungal attack on prolonged storage. The antifungal mechanism is very similar to antibacterial effect, but due to presence of chitin in their cell wall, there is a higher chance of fungi to transform into resistant fungi by stress signalling induced by chemical fungicides [71]. Use of single fungicide has failed to act against fungal diseases, however by combining chemical fungicides with biocontrol agents have also paved a new application against postharvest fungal control [72]. In potato, combination of oregano and thyme oil against Fusarium species was found to be very effective against spore germination with minimum concentration of 3 μL each. Rather as single, combination of both exhibited synergistic effect through lipid peroxidation mechanism [73]. Action against cell permeability modifications, cell membrane and mitochondrial destruction, deregulation of electrochemical proton gradient in plasma membrane, controlled production of nitric oxide synthases (NOS) that increase the resistance of fungi and decreased production of hydrogen peroxide are some of the antifungal effects of EOs. Mycelium growth, biofilm formation and production of extracellular polysaccharide (EPS) are other secondary antifungal effects by EOs. Thyme oil (Thymol) is considered to be most effective antifungal agent, especially towards inhibition of Aspergillus flavus (produces mycotoxin called aflatoxin), Aspergillus ochraceus and Fusarium oxysporum [74, 75]. Other EOs from clove against Collelotrichum gloeosporioides [76], Rhizopus nigricans and Penicillium citrinum [77], oregano against Rhizoctonia solani [78], Aspergillus flavus [79], cinnamon against A.niger [80], Candida albicans and Candida auris [81], basil against Aspergillus flavus and A. parasiticus [82], Candida albicans [83] and peppermint against Botrytis cinerea and Penicillium expansum [84] as mentioned in Fig. 1 and destruction of fungal exopolysaccharide [85] also possess considerable effect against fungi. Rather than using single EOs, use of combinations of EOs oil constituting thymol and linanool (from all literature reviewed till 2023) compounds at higher concentration provided promising lethal actions on resistant fungi.
3.4 Insecticidal effect
Insect repellent effect has been studied on various EOs against several individual species of insects. EOs show insect repellent and insecticidal activity at higher concentration. Yet the exact mechanism of insecticidal activity of EOs is still unknown; however, analytical techniques using proteomic revealed that penetration of lipophilic bioactive compounds from EOs into their soft-bodied cuticle, results in disrupting or blocking of their growth hormones, neurotransmitters (GABA-gated Chloride channels) and specific enzymes in their digestive system [86, 87]. Insecticidal activity was due to alteration of RNA and DNA by deregulating ion exchange in mitochondrial region thereby causing death of an organism [88]. Prolonged application of single insecticide have led to the development of resistance against insect-pests. Though, combination of more than one insecticide has greater toxicity to insect-pests, it imparts concern over the residual effects [89]. Kačániová et al., [57] studied that application of basil EO (Ocimum basilicum) at 100% concentration acted as insecticidal agent against Pyrrhocoris apterus. Acorus gramineus (grassy-leaved Sweet flag) oil when applied at 1000 ppm resulted in 100% mortality in female adults of Nilaparvata lugens [90]. Applying cinnamon oil at 80 μg/ml caused death of larva of Pseudococcus longispinus in guava [91] as mentioned in Fig. 1. EOs obtained from various eucalyptus sp., acts an insecticide, repellant and acaricide against various insect pests and mites like Blattella germanica, Rhyzoperta dominica, Carpophilus hemipterus, Tribolium castaneum, Sitophilus zeamais, Melophagus ovinus, Lutzomyia longipalpis. Among the eucalyptus species, Eucalyptus globus has higher efficiency in preventing major insect-pest infestation [92]. Hence, EO can be applied alone or by combining with any one of the other EOs or sometimes even with conventional insecticides would be greater option by not only reducing the residual effect but also controlling the insect-pests effectively. Garlic and thyme EOs in combination with synthetic insecticides like cypermethrin and chlorpyrifos performed higher toxicity towards 4th instar larvae of Spodoptera littoralis that affects cotton, maize and tomato in Egypt. The EOs synergistically enhanced the activity of cypermethrin in terms of toxicity by inhibiting some detoxifying enzymes that are closely associated to proliferate the pesticide resistance than chlorpyrifos [93]. The practice of using synthetic pesticides. Thus, the application of EOs extracted from spices and herbs would be the greener alternative for synthetic pesticides.
4 Preventative effects of EOs on fruit quality and ripening
The application of vanilla EO in conjugation with chitosan (0.6% conc.) on sapodilla fruit prevented the reduction of fruit weight loss, sugar levels, thereby maintaining the vitamin C levels and extending the shelf life of the fruit upto7 days [29]. The fruit firmness, TSS levels, reduction in fruit weight loss were maintained, when orange, Valencia was treated with fennel EO (600 µL L−1) in combination with 24-epibrassinolide (4 µL L−1). In addition, the combination enhanced the total anthocyanin content, total flavonoid content and improved overall fruit quality [30].The tomato fruits when packed with the sachet filled with the mixture of clinoptilolite clay, activated charcoal and ground clove buds (10:1:1) maintained the fruit remain greener for long period by reducing the ethylene production rate thereby acting an ethylene antagonist. This resulted in delayed ripening by improving the shelf life up to 9 days [94].The nanoemulsion-based coating with ginger EO (18%) on papaya maintained the fruit quality by retarding the fruit weight loss, improving flesh firmness, peel color and delayed the fruit ripening by reducing the respiration rates, resulting in shelf life extension up to 9 days on storing at 22 ℃ [33]. To summarize the effect of EOs on fruit quality and ripening, the overall fruit quality was improved compared to the control, when EOs are applied at optimum level. Hence EOs are considered to be one of the promising bio-tool to maintain the fruit quality and delay ripening without or least affecting its sensory attributes.
5 Novel delivery technique of spice and herb EOs on fruits and vegetables
Effectiveness of application of EOs depends upon the method of delivering bioactive compounds on fruits and vegetables. This depends on the several external factors like storage temperature, concentration of EOs, modes of delivery, humidity and environmental exposure and internal factors like intracellular space, thickness of epidermis, texture of the product and pest infestation before harvest. These essential oils can be delivered through conventional methods (spraying, dipping, coating, fumigation, injection) and non-conventional methods (nanotechnology, microbubble technology, electrospun coating, hydrosol, fruit stalk delivery) discussed in Tables 1 and 2. These non-conventional methods are regarded as the novel methods as each of these methods are effective with various advantages.
5.1 Nanotechnology
Advances in nanotechnology introduced various field of application in food and agricultural industry. Nano-emulsion, nano-spray, nano-coating, nano-fibers, edible film with nano-emulsified EOs and nano-particles are diverse output of nanotechnology. Several technology can be used to prepare nano-emulsion and particle like spray-drying, freeze-drying, electrospinning and other green technologies like ultrasonication, microfluidization, cold plasma etc. EOs in their nano-form has higher stability against oxidation, increased bioefficieny, water soluble, higher penetration rate and sustained release of bioactive compounds on application [30]. Peppermint oil as nano-emulsion dipping on Baby spinach, romaine and iceberg lettuce [47], Oregano oil as Nano-emulsion dipping on fresh celery [53], ginger oil on papaya [33], betal vine as nano-emulsion edible coating on tomato [42], Citronella oil as Nano-emulsion edible coating on grapes [60] were some reported nano-emulsified EOs application in postharvest quality preservation technique discussed in Tables 1 and 2.
5.2 Microbubble technology
This technique uses ozone (O3) as natural fumigant and effective able to clean the fruits and vegetable surface matrix through cavitation process that oxidizes the contaminates, agro-chemical residues and surface cleaning dirts. Microbubble (MCB) technology is one of the emerging technology used to clean food surfaces, decontamination of food products and to prepare reduced fat oil dispersion. This MCB can be exploited for cleaning combined with EOs for fruits and vegetables to perform removal of pesticide residue and to ensure even coating of bioactive compound through gas–liquid mass transfer [95]. Incorporation of MCB into EOs produces stable oleoforms in the presence of stabilizer that offer wide range of advantages like reduced oil dispersion, efficient coating [96]. Hence, in future MCB would be able to produce dry EOs dispersion or EOs Pickering emulsion to preserve postharvest quality of raw materials.
5.3 Electrospun coating
“Electrospun coating” generally refers to a process known as electrospinning, which is a technique used in the fabrication of nano-fibrous materials. Electrospinning involves the use of an electric field to create a charged jet of polymer solution or melt that is drawn towards a grounded or oppositely charged collector. The process results in the formation of ultrafine fibers that can be deposited on a substrate to form a coating [97]. Such technology can be used as delivery method for EOs as postharvest quality preservation technique. Some of the notable examples are zein fiber loaded savory and thyme EOs acted as antimicrobial against pathogenic microbes and also prevented postharvest physico-chemical losses productively [62, 63].
5.4 Hydrosol
A hydrosol, also known as floral water or plant water, is a co-product of the process of steam distillation or hydrodistillation used in the production of essential oils. When plant material, such as flowers, leaves, or herbs, is subjected to steam or water vapor, the essential oil is released from the plant material. The vapor then condenses, resulting in two products: the essential oil and the hydrosol. Although hydrosol has limited bioactive components compared to EOs, but has certain advantages like higher water dispersibility, cheaper price and able to perform similar action like EOs [98]. Hydrosols from Teragonia spicata [99], lemongrass [100], mint and fennel [44] achieved antibacterial, antiviral, insect repellent and antioxidative effects. Utilization of hydrosol not only reduces the cost of production, but also contributes significantly to circular bio-economy [101].
5.5 Fruit-stalk delivery
Fruit-stalk delivery is a novel strategy for delivering supplementation and preservatives by either injection or bagging of stalk of the fruit for certain period. The stalk of the fruit or vegetable acts as a source of amino acids in kiwifruit, mineral pool in broccoli heads. However, when the stalk of the chilli is removed, it fastens the rate of decaying [102]. So, the stalk acts as a portal to the inner fruit part. One of the study by Song et al. [103], experimented application of nano-capsules with calcium, chitosan and alginate complex to stalk of apple enhanced the calcium absorption with response to release of citric acid in fruit that greatly prevented bitter pit defect compared to other method of delivery. This novel method of delivery would be great alternative rather than dipping, spray or coating that requires lesser concentration of EOs and better performance.
6 Potential challenges in application of spice and herb EOs in fruits and vegetables
6.1 Over dosage of EOs
EOs at low concentration acts as protective shield against browning, bacteria, fungi and virus, but at higher concentration affects the natural biological process of the fruits and vegetables. Only few studies have reported the overdose of EOs in plants. EO blend of thyme, mint, lemon and lemongrass in cucumber plant at optimal dose (2.5 mL/L) prevented the powdery mildew; but, increased dose of 3.0–4.0 mL/L produced shiny spots on plant leaves and further increase in dose up to 5.0 mL/L eventually caused death of the plant [104]. Consumption of higher dose of EO coated raw material also adversely affect the human health from mild to advanced condition on prolonged exposure [105, 106]. Similarly higher dosage of EOs to the softer surface of fruits and vegetable inhibits the respiration rate due to their hydrophobicity by blocking the cuticle in epidermis. Higher dose of sage EO (0.5%) decreased total soluble solids, β-carotene and acidity of tomato [52]. The surface appears to be oily, slippery which make them difficult to handle. Hence, optimal level of EO formulation with water soluble ingredients should be used as preservative agent in fruits and vegetables.
6.2 Change in sensory attributes
One of the notable disadvantage of EO application in food products was their strong influence on organoleptic properties. As the bioactive compounds in EOs are highly aromatic, even at low level adversely affects the sensory attributes of final treated produce. Oregano and thyme EOs washed lettuce resulted in sharp acidic taste and strong chemical aroma, that flavour and taste of the washed lettuce was completely unacceptable [107]. Higher dose of sage EO (0.5%) has negative impact on chroma, lycopene and redness of tomato [52]. Masking of strong aroma of EOs can be achieved by right formulation with masking agents like maltodextrin, β-cyclodextrin and EDTA (Ethylene diamine tetra acetic acid).
7 Conclusion and future trends
This review has aimed to report on the use of spice and herb oil, either alone or in conjunction with other materials, to develop a sustainable food protectants alternative to the agrochemicals. Approaches incorporating the spice and herb essential oils have been regarded as potent natural antimicrobial agents in fruits and vegetables. Food security has become a critical global concern, and the implementation of essential oils as bio-protectants through different coating techniques holds significant potential for mitigating the postharvest losses due to contamination and upholding the food security.
Therefore, by incorporating the spice and herb EOs as a combating plant based food protectants into marketing practices, there is a notable opportunity to substantially decrease the risk of pathogenic contamination and prolong the shelf life of fruits and vegetables. However, further experimental trials and detailed examinations are needed to be carried out to understand the biological activity, physiological function, inhibitory action and dispersion of each spice and herb essential oils and their bioactive compounds in fruit and vegetable tissues, thereby ensuring to develop a novel formulation that is safe for the environment as well as human health.
Data availability
No datasets were generated or analysed during the current study.
References
Panda RK, Mishra DN. Preferred channel choices in vegetable marketing: role of macro and micro environmental factors in Odisha. J Evolut Stud Bus. 2023;8(2):168–212.
Ncama K, Mditshwa A, Tesfay SZ, Mbili NC, Magwaza LS. Topical procedures adopted in testing and application of plant-based extracts as bio-fungicides in controlling postharvest decay of fresh produce. Crop Prot. 2019;115:142–51.
Prusky D. Reduction of the incidence of postharvest quality losses, and future prospects. Food Secur. 2011;3:463–74.
Henz GP, Porpino G. Food losses and waste: How Brazil is facing this global challenge? Hortic Bras. 2017;35:472–82.
Ali S, Khan AS, Malik AU. Postharvest l-cysteine application delayed pericarp browning, suppressed lipid peroxidation and maintained antioxidative activities of litchi fruit. Postharvest Biol Technol. 2016;121:135–42.
Zhang Y, Huber DJ, Hu M, Jiang G, Gao Z, Xu X, Jiang Y, Zhang Z. Delay of postharvest browning in litchi fruit by melatonin via the enhancing of antioxidative processes and oxidation repair. J Agric Food Chem. 2018;66(28):7475–84.
Usall J, Ippolito A, Sisquella M, Neri F. Physical treatments to control postharvest diseases of fresh fruits and vegetables. Postharvest Biol Technol. 2016;122:30–40.
Shezi S, Magwaza LS, Mditshwa A, Tesfay SZ. Changes in biochemistry of fresh produce in response to ozone postharvest treatment. Sci Hortic. 2020;269:109397.
Zhang W, Jiang W. UV treatment improved the quality of postharvest fruits and vegetables by inducing resistance. Trends Food Sci Technol. 2019;92:71–80.
Elias M, Madureira J, Santos P, Carolino M, Margaça F, Verde SC. Preservation treatment of fresh raspberries by e-beam irradiation. Innov Food Sci Emerg Technol. 2020;66:102487.
Fallik E, Zoran I. Control of postharvest decay of fresh produce by heat treatments; the risks and the benefits. In: Palou L, Smilanick JL, editors. Postharvest Pathology of fresh horticultural produce. Boca Raton: CRC Press. 2019;521–38.
Pan Y, Cheng JH, Sun DW. Cold plasma-mediated treatments for shelf life extension of fresh produce: a review of recent research developments. Comp Rev Food Sci Food Saf. 2019;18(5):1312–26.
Duarte-Sierra A, Tiznado-Hernández ME, Jha DK, Janmeja N, Arul J. Abiotic stress hormesis: an approach to maintain quality, extend storability, and enhance phytochemicals on fresh produce during postharvest. Comp Rev Food Sci Food Saf. 2020;19(6):3659–82.
Esmaeili, Y., Paidari, S., Baghbaderani, S. A., Nateghi, L., Al-Hassan, A., & Ariffin, F. (2022). Essential oils as natural antimicrobial agents in postharvest treatments of fruits and vegetables: A review. Journal of Food Measurement and Characterization, 1–16.
OuYang Q, Okwong RO, Chen Y, Tao N. Synergistic activity of cinnamaldehyde and citronellal against green mold in citrus fruit. Postharvest Biol Technol. 2020;162:111095.
Raveau R, Fontaine J, Lounès-Hadj Sahraoui A. Essential oils as potential alternative biocontrol products against plant pathogens and weeds: a review. Foods. 2020;9(3):365.
Du Plooy W, Regnier T, Combrinck S. Essential oil amended coatings as alternatives to synthetic fungicides in citrus postharvest management. Postharvest Biol Technol. 2009;53(3):117–22.
da Costa Gonçalves D, Ribeiro WR, Goncalves DC, Menini L, Costa H. Recent advances and future perspective of essential oils in control Colletotrichum spp.: a sustainable alternative in postharvest treatment of fruits. Food Res Int. 2021;150:110758.
Jackson-Davis A, White S, Kassama LS, Coleman S, Shaw A, Mendonca A, Cooper B, Thomas-Popo E, Gordon K, London L. A review of regulatory standards and advances in essential oils as antimicrobials in foods. J Food Prot. 2023;86(2):100025.
Jha AK, Sit N. Extraction of bioactive compounds from plant materials using combination of various novel methods: a review. Trends Food Sci Technol. 2022;119:579–91.
Thilakarathna R, Siow LF, Tang T-K, Chan E-S, Lee Y-Y. Physicochemical and antioxidative properties of ultrasound-assisted extraction of mahua (Madhuca longifolia) seed oil in comparison with conventional Soxhlet and mechanical extractions. Ultrason Sonochem. 2023;92:106280.
Al-Harrasi A, Saurabh B, Tapan B, Deepak K, Mohammed MA, Khalid A. Antibacterial mechanism of action of essential oils. In Role of Essential Oils in the Management of COVID-19. Boca Raton. CRC Press. 2022;227–237.
Iacobellis NS, Lo Cantore P, Capasso F, Senatore F. Antibacterial activity of Cuminum cyminum L. and Carum carvi L. essential oils. J Agric Food Chem. 2005;53(1):57–61.
Kotan R, Cakir A, Dadasoglu F, Aydin T, Cakmakci R, Ozer H, Kordali S, Mete E, Dikbas N. Antibacterial activities of essential oils and extracts of Turkish Achillea, Satureja and Thymus species against plant pathogenic bacteria. J Sci Food Agric. 2010;90(1):145–60.
Song YR, Choi MS, Choi GW, Park IK, Oh CS. Antibacterial activity of cinnamaldehyde and estragole extracted from plant essential oils against Pseudomonas syringae pv. actinidiae causing bacterial canker disease in kiwifruit. Plant Pathol J. 2016;32(4):363.
Catherine AA, Deepika H, Negi PS. Antibacterial activity of eugenol and peppermint oil in model food systems. J Essent Oil Res. 2012;24(5):481–6.
Kahramanoğlu İ. Black cumin oil-enriched edible coating application improves the storability of fresh loquat fruits. In: Paper presented at the V international symposium on pomegranate and minor Mediterranean fruits 1349 (2022).
Chaidech P, Matan N. Cardamom oil-infused paper box: enhancing rambutan fruit post-harvest disease control with reusable packaging. LWT. 2023;189:115539.
Widyastuti T, Dewi S, Mudawy A. Use of Chitosan and Essential Oils as Edible Coating for Sapodilla Fruit (Manilkara zapota). In: Paper presented at the IOP conference series: earth and environmental science (2023).
Rashidi H, Amiri J, Shirzad H. Effect of Postharvest treatment with 24-epibrassinolide and fennel (Foeniculum vulgare) essential oil on quality attributes and storage life of orange (Citrus sinensis cv. ‘Valencia’). Erwerbs Obstbau. 2023;65(4):927–39.
Horison R, Sulaiman F, Alfredo D, Wardana A. Physical characteristics of nanoemulsion from chitosan/nutmeg seed oil and evaluation of its coating against microbial growth on strawberry. Food Res. 2019;3(6):821–7.
Luesuwan S, Naradisorn M, Shiekh KA, Rachtanapun P, Tongdeesoontorn W. Effect of active packaging material fortified with clove essential oil on fungal growth and post-harvest quality changes in table grape during cold storage. Polymers. 2021;13(19):3445.
Miranda M, Sun X, Marín A, Dos Santos LC, Plotto A, Bai J, Assis OBG, Ferreira MD, Baldwin E. Nano-and micro-sized carnauba wax emulsions-based coatings incorporated with ginger essential oil and hydroxypropyl methylcellulose on papaya: preservation of quality and delay of post-harvest fruit decay. Food Chem X. 2022;13:100249.
Ghosh T, Nakano K, Katiyar V. Curcumin doped functionalized cellulose nanofibers based edible chitosan coating on kiwifruits. Int J Biol Macromol. 2021;184:936–45.
Jafari R, Mohsen Z, Ali G. Effect of gelatin–alginate coating containing anise (Pimpinella anisum L.) essential oil on physicochemical and visual properties of zucchini (Cucurbita pepo L.) fruit during storage. J Food Process Preserv. 2022;46(8):16756. https://doi.org/10.1111/jfpp.16756.
Jokari A, Mohammadi Jahromi SA, Jokari S, Jamali M. Effect of edible coating on strawberry quality characteristics during cold storage. Erwerbs Obstbau. 2023;65(6):2259–69.
Kusumaningsih T, Istiqomah A, Firdaus M, Suryanti V. A green metrics approach toward antibacterial chitosan/starch-based films reinforced with garlic oil for extending the shelf-life of Capsicum annum. Int J Food Sci Technol. 2023;58(10):5311–8.
Salajegheh F, Tajeddin B, Panahi B, Karimi H. Effect of edible coatings based on zein and chitosan and the use of Roman aniseed oil on the microbial activity of Mazafati dates. J Food Bioprocess Eng. 2020;3(2):178–84.
Hanaei S, Bodaghi H, Ghasimi Hagh Z. Alleviation of postharvest chilling injury in sweet pepper using salicylic acid foliar spraying incorporated with caraway oil coating under cold storage. Front Plant Sci. 2022;13:999518.
Salama HE, Aziz MSA. Development of active edible coating of alginate and aloe vera enriched with frankincense oil for retarding the senescence of green capsicums. LWT. 2021;145:111341.
Ren J-J, Zhang D, Hou P-X, Wu H. Effects of horseradish oil and eight isothiocyanates vapour treatment on postharvest disease control and their efficacy as preservatives of mature green tomato. Plant Dis. 2020;104(10):2688–95.
Poovai P, Kumaran N, Iyengar A, Kalpana P, Ramasubramaniyan M. A study on coating of hydroxypropyl methylcellulose incorporated with a nano-emulsion of Piper betel leaf essential oil to enhance shelf-life and improve postharvest quality of Tomato (Solanum lycopersicum L.). J Appl Nat Sci. 2023;15(1):252–61.
Sheikh M, Mehnaz S, Sadiq MB. Prevalence of fungi in fresh tomatoes and their control by chitosan and sweet orange (Citrus sinensis) peel essential oil coating. J Sci Food Agric. 2021;101(15):6248–57.
Taglienti A, Donati L, Dragone I, Ferretti L, Gentili A, Araniti F, Sapienza F, Astolfi R, Fiorentino S, Vecchiarelli V, Papalini C. In vivo antiphytoviral and aphid repellency activity of essential oils and hydrosols from Mentha suaveolens and Foeniculum vulgare to control zucchini yellow mosaic virus and its vector Aphis gossypii. Plants. 2023;12(5):1078.
Bilal H, Hashmi MS. Combination of rosemary oil and potassium sorbate controls anthracnose in mango fruit by triggering defense-related enzymes. Physiol Mol Plant Pathol. 2023;127:102112.
Liu J, Liu Y, Shao S, Zheng X, Tang K. Soluble soybean polysaccharide/carboxymethyl chitosan coatings incorporated with lavender essential oil: structure, properties and application in fruit preservation. Prog Org Coat. 2022;173:107178. https://doi.org/10.1016/j.porgcoat.2022.107178.
Chen CH, Yin HB, Teng ZI, Byun S, Guan Y, Luo Y, Upadhyay A, Patel JJ. Nanoemulsified carvacrol as a novel washing treatment reduces Escherichia coli O157: H7 on spinach and lettuce. J Food Prot. 2021;84(12):2163–73.
Xylia P, Chrysargyris A, Tzortzakis N. The combined and single effect of marjoram essential oil, ascorbic acid, and chitosan on fresh-cut lettuce preservation. Foods. 2021;10(3):575.
Xylia P, Chrysargyris A, Shahwar D, Ahmed ZF, Tzortzakis N. Application of rosemary and eucalyptus essential oils on the preservation of cucumber fruit. Horticulturae. 2022;8(9):774.
Čmiková N, Lucia G, Marianna S, Miroslava K. Use of essential oil for prolonging postharvest life of fresh vegetables.Acta Hortic Regiotect. 2023;26(1):35–42. https://doi.org/10.2478/ahr-2023-0006.
El Ouadi Y, Bendaif H, Assaggaf H, Abdallah EM, Mekkaoui M, Mrabti HN, Manssouri M, Benali T, Bouyahya A, Bouyanzer A. Efficacy of Pelargonium graveolens essential oils against some postharvest fungal diseases of apple. Adv Life Sci. 2022;9(2):195–201.
Tzortzakis N, Xylia P, Chrysargyris A. Sage essential oil improves the effectiveness of Aloe vera gel on postharvest quality of tomato fruit. Agronomy. 2019;9(10):635.
Dávila-Rodríguez M, López-Malo A, Palou E, Ramírez-Corona N, Jiménez-Munguía MT. Antimicrobial activity of nanoemulsions of cinnamon, rosemary, and oregano essential oils on fresh celery. LWT. 2019;112:108247.
Bashir O, Amin T, Hussain SZ, Naik HR, Goksen G, Wani AW, Manzoor S, Malik AR, Wani FJ, Proestos CC. Development, characterization and use of rosemary essential oil loaded water-chestnut starch based nanoemulsion coatings for enhancing post-harvest quality of apples var. Golden delicious. Curr Res Food Sci. 2023;7:100570.
de Oliveira LI, de Oliveira KÁ, de Medeiros ES, Batista AU, Madruga MS, dos Santos Lima M, de Souza EL, Magnani M. Characterization and efficacy of a composite coating containing chitosan and lemongrass essential oil on postharvest quality of guava. Innov Food Sci Emerg Technol. 2020;66:102506. https://doi.org/10.1016/j.ifset.2020.102506.
Ayón Reyna LE, Uriarte Gastelum YG, Camacho Díaz BH, Tapia Maruri D, López López ME, López Velázquez JG, Vega García MO. Antifungal activity of a chitosan and mint essential oil coating on the development of Colletotrichum gloeosporioides in papaya using macroscopic and microscopic analysis. Food Bioprocess Technol. 2022;15(2):368–78.
Kačániová M, Galovičová L, Borotová P, Vukovic NL, Vukic M, Kunová S, Hanus P, Bakay L, Zagrobelna E, Kluz M, Kowalczewski PŁ. Assessment of Ocimum basilicum essential oil anti-insect activity and antimicrobial protection in fruit and vegetable quality. Plants. 2022;11(8):1030.
Kou Z, Zhang J, Lan Q, Liu L, Su X, Islam R, Tian Y. Antifungal activity and mechanism of palmarosa essential oil against pathogen Botrytis cinerea in the postharvest onions. J Appl Microbiol. 2023;134(12):lxad290.
Sandarathna S, Kumari D, Wijayasinghe M, Wijelath W, Madhushan K, Yapa P. Antifungal activity of plant-based extracts against Colletotrichum musae, Botryodiplodia theobromae and Rhizopus stolonifer and potential application as a fruit coating. J Sci FAS SEUSL. 2022;3(01):10–6.
Motelica L, Ficai D, Ficai A, Truşcă R-D, Ilie C-I, Oprea O-C, Andronescu E. Innovative antimicrobial chitosan/ZnO/Ag NPs/citronella essential oil nanocomposite-potential coating for grapes. Foods. 2020;9(12):1801.
Wang H, Guo L, Liu L, Han B, Niu X. Composite chitosan films prepared using nisin and Perilla frutescense essential oil and their use to extend strawberry shelf life. Food Biosci. 2021;41:101037.
Bumedi F, Aran M, Miri MA, Seyedabadi E. Preparation and characterization of zein electrospun fibers loaded with savory essential oil for fruit preservation. Ind Crops Prod. 2023;203:117121.
Ansarifar E, Moradinezhad F. Encapsulation of thyme essential oil using electrospun zein fiber for strawberry preservation. Chem Biol Technol Agric. 2022;9:1–11.
Battistini R, Rossini I, Ercolini C, Goria M, Callipo MR, Maurella C, Pavoni E, Serracca L. Antiviral activity of essential oils against hepatitis A virus in soft fruits. Food Environ Virol. 2019;11:90–5.
Seymour I, Appleton H. Foodborne viruses and fresh produce. J Appl Microbiol. 2001;91(5):759–73.
Jerković-Mujkić A, Mahmutović I, Bešta-Gajević R. Antiphytoviral effects of three different essential oils on Tobacco mosaic virus. Radovi Šumarskog fakulteta Univerziteta u Sarajevu. 2013;43(2):41–51.
Iftikhar S, Shahid AA, Javed S, Nasir IA, Tabassum B, Haider MS. Essential oils and latices as novel antiviral agent against Potato leaf roll virus and analysis of their phytochemical constituents responsible for antiviral activity. J Agric Sci. 2013;5(7):167.
Wani AR, Yadav K, Khursheed A, Rather MA. An updated and comprehensive review of the antiviral potential of essential oils and their chemical constituents with special focus on their mechanism of action against various influenza and corona viruses. Microb Pathog. 2021;152:104620.
Astani A, Reichling J, Schnitzler P. Comparative study on the antiviral activity of selected monoterpenes derived from essential oils. Phytother Res Int J Devoted Pharmacol Toxicol Evaluation Nat Prod Deriv. 2010;24(5):673–9.
Vimalanathan S, Hudson J. Anti-influenza virus activity of essential oils and vapors. Am J Essent Oils Nat Prod. 2014;2(1):47–53.
Hayes BM, Anderson MA, Traven A, van der Weerden NL, Bleackley MR. Activation of stress signalling pathways enhances tolerance of fungi to chemical fungicides and antifungal proteins. Cell Mol Life Sci. 2014;71:2651–66.
Ons L, Bylemans D, Thevissen K, Cammue BP. Combining biocontrol agents with chemical fungicides for integrated plant fungal disease control. Microorganisms. 2020;8(12):1930.
Bounar R, Krimat S, Boureghda H, Dob T. Chemical analyses, antioxidant and antifungal effects of oregano and thyme essential oils alone or in combination against selected Fusarium species. Int Food Res J. 2020;27(1):66–77.
Oliveira RC, Carvajal-Moreno M, Correa B, Rojo-Callejas F. Cellular, physiological and molecular approaches to investigate the antifungal and anti-aflatoxigenic effects of thyme essential oil on Aspergillus flavus. Food Chem. 2020;315:126096.
Ownagh AO, Hasani A, Mardani K, Ebrahimzadeh S. Antifungal effects of thyme, agastache and satureja essential oils on Aspergillus fumigatus, Aspergillus flavus and Fusarium solani. Paper presented at the Veterinary Research Forum (2010).
Wang D, Zhang J, Jia X, Xin L, Zhai H. Antifungal effects and potential mechanism of essential oils on Collelotrichum gloeosporioides in vitro and in vivo. Molecules. 2019;24(18):3386.
Xing Y, Xu Q, Li X, Che Z, Yun J. Antifungal activities of clove oil against Rhizopus nigricans, Aspergillus flavus and Penicillium citrinum in vitro and in wounded fruit test. J Food Saf. 2012;32(1):84–93.
Wu TL, Zhang BQ, Luo XF, Li AP, Zhang SY, An JX, Zhang ZJ, Liu YQ. Antifungal efficacy of sixty essential oils and mechanism of oregano essential oil against Rhizoctonia solani. Ind Crops Prod. 2023;191:115975.
Ji M, Li J, Fan L. Study on the antifungal effect and mechanism of oregano essential oil fumigation against Aspergillus flavus. J Food Process Preserv. 2022;46(11):e17026.
Wang M, Liu H, Dang Y, Li D, Qiao Z, Wang G, Liu G, Xu J, Li E. Antifungal mechanism of cinnamon essential oil against Chinese yam-derived Aspergillus niger. J Food Process Preserv. 2023. https://doi.org/10.1155/2023/5777460.
Tran HN, Graham L, Adukwu EC. In vitro antifungal activity of Cinnamomum zeylanicum bark and leaf essential oils against Candida albicans and Candida auris. Appl Microbiol Biotechnol. 2020;104:8911–24.
Mokbel AA, Alharbi AA. Antifungal effects of basil and camphor essential oils against ‘Aspergillus flavus’ and ‘A. parasiticus’. Aust J Crop Sci. 2015;9(6):532–7.
Miao Q, Zhao L, Wang Y, Hao F, Sun P, He P, Liu Y, Huang J, Liu X, Liu X, Deng G. Microbial metabolomics and network analysis reveal fungistatic effect of basil (Ocimum basilicum) oil on Candida albicans. J Ethnopharmacol. 2020;260:113002.
Fincheira P, Jofré I, Espinoza J, Levío-Raimán M, Tortella G, Oliveira HC, Diez MC, Quiroz A, Rubilar O. The efficient activity of plant essential oils for inhibiting Botrytis cinerea and Penicillium expansum: mechanistic insights into antifungal activity. Microbiol Res. 2023;277:127486.
Song B, Zhu W, Song R, Yan F, Wang Y. Exopolysaccharide from Bacillus vallismortis WF4 as an emulsifier for antifungal and antipruritic peppermint oil emulsion. Int J Biol Macromol. 2019;125:436–44.
Sampson BJ, Tabanca N, Kirimer NE, Demirci B, Baser KH, Khan IA, Spiers JM, Wedge DE. Insecticidal activity of 23 essential oils and their major compounds against adult Lipaphis pseudobrassicae (Davis)(Aphididae: Homoptera). Pest Manag Sci Former Pestic Sci. 2005;61(11):1122–8.
Al-Ansari MM, Andeejani AM, Alnahmi E, AlMalki RH, Masood A, Vijayaraghavan P, Rahman AA, Choi KC. Insecticidal, antimicrobial and antioxidant activities of essential oil from Lavandula latifolia L. and its deterrent effects on Euphoria leucographa. Ind Crops Prod. 2021;170:113740.
Huang Y, Liao M, Yang Q, Xiao J, Hu Z, Cao H. iTRAQ-based quantitative proteome revealed metabolic changes of Sitophilus zeamais in response to terpinen-4-ol fumigation. Pest Manag Sci. 2019;75(2):444–51.
Juache-Villagrana AE, Pando-Robles V, Garcia-Luna SM, Ponce-Garcia G, Fernandez-Salas I, Lopez-Monroy B, Rodriguez-Sanchez IP, Flores AE. Assessing the impact of insecticide resistance on vector competence: a review. Insects. 2022;13(4):377.
Balakumbahan R, Rajamani K, Kumanan K. Acorus calamus: an overview. J Med Plants Res. 2010;4(25):2740–5.
Seshadri VD, Balasubramanian B, Al-Dhabi NA, Esmail GA, Arasu MV. Essential oils of Cinnamomum loureirii and Evolvulus alsinoides protect guava fruits from spoilage bacteria, fungi and insect (Pseudococcus longispinus). Ind Crops Prod. 2020;154:112629.
Danna C, Malaspina P, Cornara L, Smeriglio A, Trombetta D, De Feo V, Vanin S. Eucalyptus essential oils in pest control: a review of chemical composition and applications against insects and mites. Crop Prot. 2023. https://doi.org/10.1016/j.cropro.2023.106319.
Ismail S. Synergistic efficacy of plant essential oils with cypermethrin and chlorpyrifos against Spodoptera littoralis, field populations in Egypt. Int J Adv Biol Biomed Res. 2021;9:128–37.
Duque LF, Amador MV, Guzmán M, Asensio C, Valenzuela JL. Development of a new essential oil-based technology to maintain fruit quality in tomato. Horticulturae. 2021;7(9):303.
Li C, Xie Y, Guo Y, Cheng Y, Yu H, Qian H, Yao W. Effects of ozone-microbubble treatment on the removal of residual pesticides and the adsorption mechanism of pesticides onto the apple matrix. Food Control. 2021;120:107548. https://doi.org/10.1016/j.foodcont.2020.107548.
Lu J, Jones OG, Yan W, Corvalan CM. Microbubbles in food technology. Annu Rev Food Sci Technol. 2023;14:495–515.
Hossaeini Marashi SM, Noori SMR, Hashemi M, Raeisi M, Noori SMA. Electrospinning of nanofibers incorporated with essential oils: applications in food. Curr Pharm Biotechnol. 2023;24(15):1881–97.
Değirmenci H, Erkurt H. Relationship between volatile components, antimicrobial and antioxidant properties of the essential oil, hydrosol and extracts of Citrus aurantium L. flowers. J Infect Public Health. 2020;13(1):58–67.
Erdoğan Eliuz E, Bahadırlı NP. Investigation of antibacterial activity and mechanism of T. spicata essential oil, and activation of the hydrosol formed as a by-product with UV. Biologia. 2023;78(4):1161–70.
Dewi AOT, Antari ED, Dewi WER. Antioxidant activity of lemongrass (Cympogon nardus L.) hydrosol with various extraction time. IITE Proc Int Inov Technol Proc. 2023;1(1):130–7.
Jonas (ed). Essential Oils - Recent Advances, New Perspectives and Applications. Biochemistry. IntechOpen. 2024;49(10):96. https://doi.org/10.5772/intechopen.107782.
Li H, Fan Y, Zhi H, Zhu Y, Liu Y, Wang Y. Influence of fruit stalk on reactive oxygen species metabolism and quality maintenance of peach fruit under chilling injury condition. Postharvest Biol Technol. 2019;148:141–50.
Song J, Sun S, Wang B, Chen H, Shi J, Zhang Y, Kong X. Fruit-stalk supplementing calcium and partition regulation of fruit calcium for prevention of bitter pit of bagged apple. J Plant Growth Regul. 2023;42(5):3000–16.
Mostafa YS, Hashem M, Alshehri AM, Alamri S, Eid EM, Ziedan E-SH, Alrumman SA. Effective management of cucumber powdery mildew with essential oils. Agriculture. 2021;11(11):1177.
Guba R. Toxicity myths: the actual risks of essential oil use. Perfum Flavorist. 2000;25(2):10–28.
Wojtunik-Kulesza KA. Toxicity of selected monoterpenes and essential oils rich in these compounds. Molecules. 2022;27(5):1716.
Gutierrez J, Bourke P, Lonchamp J, Barry-Ryan C. Impact of plant essential oils on microbiological, organoleptic and quality markers of minimally processed vegetables. Innov Food Sci Emerg Technol. 2009;10(2):195–202.
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Lokesh Muthusamy, R. Balakumbahan, Dharani Muthusamy : Writing of original draft and conceptualization. R. Balakumbahan, J. Rajangam, S. Sathiyamurthi, T. Anitha : Revision of draft, inclusion of tables and figures, proof reading. Lokesh Muthusamy, R. Balakumbahan, S. Sathiyamurthi, Dharani Muthusamy, T. Velmurugan: Revision, formatting and Supervision. All the authors read and approved the final version of the manuscript.
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Muthusamy, L., Balakumbahan, R., Rajangam, J. et al. Spice and herb oil as potential alternative to agrochemicals in postharvest management of fruits and vegetables. Discov Appl Sci 6, 404 (2024). https://doi.org/10.1007/s42452-024-06112-9
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DOI: https://doi.org/10.1007/s42452-024-06112-9